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Sérgio ColcherView profile

Associate Professor

• Computer Networks
• Computer Systems Performance Analysis
• Multimedia/Hypermedia Systems
• +1 more

Sérgio Colcher is an Associate Professor in the Department of Computer Science at the Pontifical Catholic University of Rio de Janeiro (PUC-Rio), where he has served on faculty since 2001. He currently holds multiple leadership roles including Undergraduate Coordinator of the Computer Science Department, Undergraduate Coordinator of Computer Engineering, Graduate Coordinator of Computer Networking, and Coordinator of the Institute of Digital Media (IMD). His educational background includes a B.S. in Computer Engineering (1991), M.S. in Computer Science (1993), and Ph.D. in Computer Science (1999), all from PUC-Rio, followed by a postdoctoral degree at ISIMA (Université Blaise Pascal, France) in 2003. Professor Colcher's research spans foundational and applied domains in network technologies, with emphasis on performance analysis of distributed systems and digital media delivery architectures. His work bridges theoretical computer science with industry applications, particularly in multimedia streaming protocols and telecommunications infrastructure design. He is renowned for translating complex networking concepts into accessible educational frameworks through his influential textbooks. He received the 2012 Personality of the Year award from Assespro-RJ, recognizing his transformative contributions to Brazil's IT sector through academic leadership and industry collaboration. As Laboratory Collaborator for BTG Pactual Telemedia and IMD Coordinator, he drives industry-academia partnerships focused on digital television standards and next-generation communication systems, mentoring future technologists while advancing Brazil's position in global networking research.

Anderson Oliveira da SilvaView profile

Associate Professor

• Information Security
• Network Administration and Security
• Computer Network Performance Analysis
• +3 more

Anderson Oliveira da Silva serves as a Tenured Associate Professor II and Technical Consultant at the Department of Computer Science (DI) of Pontifical Catholic University of Rio de Janeiro (PUC-Rio). He holds dual administrative roles as the university's Information Security Manager and Personal Data Officer. His academic responsibilities span undergraduate Computer Science programs and postgraduate Latu Sensu specializations in Information Systems and Computer Networks. His educational background includes: Computer Engineering degree (1995) from PUC-Rio Master of Science in Computer Science (1999) from PUC-Rio Doctor of Science in Computer Science (2009) from PUC-Rio Professor da Silva specializes in Information Security, Network Administration, Computer Network Performance Analysis, and IoT Security. His research focuses on practical security implementations across network architectures, with emphasis on wireless networks, TCP/IP infrastructure, and secure application systems. He has developed comprehensive course materials covering cryptography, secure communications, authentication techniques, and network defense strategies through multiple handouts and laboratory exercises. His teaching portfolio includes Information Security, Network Administration and Management, Network Security, TCP/IP Architecture, and Operating Systems across various academic programs. He employs a hands-on approach with detailed laboratory practices covering Java security implementations, certificate authorities, and network protocol configurations. Professor da Silva maintains active research collaborations through two primary laboratories: Telemedia Laboratory with Professor Sérgio Colcher, focusing on Information Security and Network Performance Analysis Laboratory for Advanced Collaboration (LAC) and Great Ideas for Small Things Laboratory (GIST) with Professor Markus Endler, specializing in IoT Security As an academic advisor, he has supervised numerous graduate projects since 2003, guiding students through research on intrusion detection systems, firewall technologies, VPN implementations, wireless security, and network management tools. His professional presence includes a personal website (http://www.inf.puc-rio.br/~anderson/), Lattes CV profile, and LinkedIn profile.

Marta Feijó BarrosoView profile

Associate Professor

• Physics Teaching
• Science Education
• Educational Assessment
• +3 more

Marta Feijó Barroso is an Associate Professor at the Institute of Physics, Federal University of Rio de Janeiro (UFRJ), where she earned her PhD in Physics. She teaches graduate courses in Physics Learning within the Master's Degree in Physics Teaching program, as well as undergraduate Physics 1 courses and Introduction to Physics A and B for Mathematical and Earth Sciences students. Her research focuses on physics and science teaching methodologies, with particular emphasis on educational assessment frameworks like PISA and ENEM. She has developed computational applications for physics teaching and conducted extensive research on student retention and dropout rates in physics programs. Her work bridges theoretical educational concepts with practical classroom applications. Her publication record from 2003-2009 reveals consistent contributions to physics education research, with particular focus on teacher training, educational technology applications, and assessment methodologies. The research shows a progression from foundational studies on student conceptions of physics concepts toward more comprehensive analyses of educational systems and international comparative studies. As coordinator of the Research and Development Laboratory in Mathematics and Science Teaching, she leads a multidisciplinary team including Tatiana da Silva, Eduardo Gama, Geraldo Felipe, and others. Her laboratory has produced numerous teaching materials, video resources, and computational applications for physics education at various levels. Dr. Barroso has secured funding from multiple sources including MEC/SEB (National Teacher Training Network), FAPERJ (School Support), FINEP (Digital Teaching Materials), and CNPq (Scientific Dissemination) to support her educational research initiatives and extension projects.